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-rw-r--r--drivers/tty/serial/sh-sci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index a54c47d..c2d359c 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -485,7 +485,7 @@ static int sci_txfill(struct uart_port *port)
reg = sci_getreg(port, SCTFDR);
if (reg->size)
- return serial_port_in(port, SCTFDR) & 0xff;
+ return serial_port_in(port, SCTFDR) & ((port->fifosize << 1) - 1);
reg = sci_getreg(port, SCFDR);
if (reg->size)
@@ -505,7 +505,7 @@ static int sci_rxfill(struct uart_port *port)
reg = sci_getreg(port, SCRFDR);
if (reg->size)
- return serial_port_in(port, SCRFDR) & 0xff;
+ return serial_port_in(port, SCRFDR) & ((port->fifosize << 1) - 1);
reg = sci_getreg(port, SCFDR);
if (reg->size)
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